Solve the system by elimination.
What will be an ideal response?
Mathematics
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Use the discriminant of the equation to determine the number of x-intercepts.f(x) = x2 + 8x + 21
A. Two x-intercepts B. One x-intercept C. No x-intercepts
Mathematics
Find f(x) and g(x) such that h(x) = (f ? g)(x).h(x) = 
A. f(x) = 
, g(x) = - 
B. f(x) = 
, g(x) = x - 6
C. f(x) = 
, g(x) = x2 - 6
D. f(x) = 
, g(x) = x2 - 6
Mathematics
Solve the system of equations using matrices. Use Gaussian elimination with back-substitution. x + y + z - w=6 2x - y + 3z + 4w=-4 4x + 2y - z - w=-13 -x - 2y + 4z + 3w=12
A. {(- 
, 
, 
, - 
)}
B. {(4, -3, -5, 2)}
C. {(
, - 
, - 
, 
)}
D. {(-4, 3, 5, -2)}
Mathematics
Express the verbal representation for the function f numerically.Add 8 to the input x to obtain the output y. Let 
A. 
B. 
C. 
D. 
Mathematics